linux-kernel - [PATCH 04/11] staging: gasket: page_table: remove unnecessary PTE status set to free

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Message-Id: <20181015045927.156790-5-toddpoynor@gmail.com>
Date:   Sun, 14 Oct 2018 21:59:20 -0700
From:   Todd Poynor <toddpoynor@...il.com>
To:     Rob Springer <rspringer@...gle.com>,
        Ben Chan <benchan@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Nick Ewalt <nicholasewalt@...gle.com>,
        Todd Poynor <toddpoynor@...gle.com>
Subject: [PATCH 04/11] staging: gasket: page_table: remove unnecessary PTE status set to free

From: Nick Ewalt <nicholasewalt@...gle.com>

Remove unnecessary ptes[i].status update in gasket_perform_unmapping.
The vaaue will be cleared in the following memset.

Signed-off-by: Nick Ewalt <nicholasewalt@...gle.com>
Signed-off-by: Todd Poynor <toddpoynor@...gle.com>
---
 drivers/staging/gasket/gasket_page_table.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c
index 985a3a93499d5..d2e115d2dba30 100644
--- a/drivers/staging/gasket/gasket_page_table.c
+++ b/drivers/staging/gasket/gasket_page_table.c
@@ -623,7 +623,6 @@ static void gasket_perform_unmapping(struct gasket_page_table *pg_tbl,
 			if (gasket_release_page(ptes[i].page))
 				--pg_tbl->num_active_pages;
 		}
-		ptes[i].status = PTE_FREE;
 
 		/* and clear the PTE. */
 		memset(&ptes[i], 0, sizeof(struct gasket_page_table_entry));
-- 
2.19.0.605.g01d371f741-goog